Scale.



Ne.s5a4n4. Patented sept. 25, |900. w. F.A sTmPsoN.

SCALE.

(Applicnton ledDec. '7, 1896.)

(No Model.)

UNITED STATES PATENT OEEIE..

WALTER E; s'rIIvIPsoN-7 or MILAN, MICHIGAN.

SCALE.

SPECIFICATION forming part of Letters Patent No. 658,404, datedSeptember 25, 1900.

Appiication med December 7, 1896. serial No. 614,711. uit man.)

.To all whom t 'may concern:

Be it known that 1, VALTER F. STIMPSON, acitizen of the United States,residing at Milan, in the county of Monroe and State of Michigan,haveinvented certain new and useful Improvements in Scales, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

The invention relates to improvements in scales and particularly in theconstruction of the beam and the construction of the connections betweenthat beam and the scale-levers, in the construction of such a scale as acomputing or price scale, and in the construction, arrangement, andcombination of the various parts, all as more fully hereinafterdescribed.

In the drawings, Figure l is an elevation of a beam embodying myinvention, showing, partly in section, the supporting-shelf andstandard. Fig. 2 is a detached perspective of the link connecting theshelf-lever with the weighing beam or lever of the scale. Fig. 8 is across-section vertically through the beam on the line of this link.

The weighing-levers and platform Inay be,

of any desired construction. I have shown the standard and weighing-beamof a counter platform-scale, the platform and weighing-levers not beingshown. A is the pillar thereof, and Bis the connecting-rod or beam-rod,so called, which connects the ends of the weighing-levers with the beamor shelf-lever. In scales of this kind it has been customary to uselevers of the first class for the scale-beam.

In the use of such scales as computingscales the scale-beam has beenprovided with extensions, which were both on one side of the fulcrum,and these extensions supported a computing member, rotary or stationary.To obtain a long computing member, thereby adding to the legibility ofthe figures and increasing the capacity of such computing scales in therange of weights and prices, the extensions for the support of thecomputing member were made on opposite sides of the fulcrum and thecomputing Inember thus eX- tended on both sides of such fulcrum. Thisconstruction was found to have more or less difficulties and objections,and my present improvement was devised to overcome the same and at thesame time reduce the eX- pense of manufacture and Inake the scalequicker in its movements and Inore symmetrical in its appearance.

C is a shelf at the ltop of the standard. D and D' are extensions orbrackets on opposite ends of this shelf. E is a beam, which in this caseis shown as a tare-beam, but which may be'the weighing-beam or may be abeam simply to support a computing member, or in the event that thecomputing member does not turn it may be the computing member itself.This beam is a lever of the second class--that is, the poise (whichrepresents the Weight) is between the fulcrum and the powerthat is, theconnection to the scalelevers. The beam is shown as provided with endextensions F F', in which is pivoted a computing member G, having anydesired number of computations thereon and having a sliding poise F2,which in this case is used for weighing as well as indicating the priceper pound. The poise carries the price per pound opposite each row ofprices on the reversible plate, which in this case forms the computingmember. Beneath the shelf is the lever G, to one end of which thebeamrod B connects, and the other end connects to the outer end or freeend portion of the beam, being fulcrumed on the block H on the shelf.The connecting-rod between thelever Gr and the beam is shown in detailin Figs. 2 and 3 and has at opposite ends the opposite pivotbearings bc, being double or bifurcated to give bearing on both sides.

CZ and c are oppositely-arranged pivots in the lever and beam engagingwith these bearings on the connecting-rod.

h are caps for the upper bearing, and z' is a cap for the lower bearing,having the bend 7c, which forms a loop by which to suspend thecounterpoise l.

The fulcrum-pivot m of the beam may be' and preferably is in the upwardextension on the beam E and at such a point as t0 be on the line of thecenter of gravity of the beam as a whole. The connecting-pivot e at theopposite end is likewise preferably in the extension and in the sameline. This enables me to dispense with any counterbalance-poise for thisupper beam to properly locate the center of gravity of the beam, andtherefore greatly lightens the beam, which l ICO inakes it quicker andmore sensitive in its movement, and also enables me to make it inuchmore compact and symmetrical.

The use of the scale is obvious and requires no further description toany one familiar with scales.

What I claim as my invention isl. In a scale, the beam formed of a leverof the second class, a shelflever below the beam, a connection at oneend of said shelflever to the scale-platform, and at the other end arigid connecting rod or link, connecting the beam and shelf-lever,oppositely-arranged bearings in the ends of said link, oppositelydisposed pivots in the lever and beam with which said bearings engageand a rotary computing member supported in said beam.

2. In a scale, the combination Wit-h the supporting-standard, a shelf orcap thereon, an

intermediate or shelf lever fulcrumed below` said cap, a connection fromone end thereof to the scale-levers, a beam fulcrumed at its end on thecap or shelf, and a rigid connection from the other end of the beam tothe fulcrum-pivot in one of said end extensions,;

a lever below the cap connected to the scalelevers at one end, a rigidlink connecting said lever at the other end to the beam, and a computingmember supported in said extensions.

4. In a scale, a cap or shelf, a beam above the shelf, upwardlyextending extensions thereon the fulcrum-pivot in one of saidextensions, a connecting-pivot in the other extension, a lever below thecap connected to the scaleelevers, a rigid upstanding link connectingthe lever to the connecting-pivot in the extension, and a rotatableweighing and computing member pivoted in said eXtensions.

5. In a scale, the combination with the lever G, and beam E of theconnecting-link between the lever and beam, consisting of a rigidmember, bifurcated to embrace the ends of both beam and lever, andoppositely-arranged bearings in the ends of the bifurcaL tions, engagingoppositely-arranged pivots in the beam and lever.

In testimony whereof I aflix my signature in presence of two witnesses.

WALTER F. STIMPSON.

Witnesses:

CHARLES GUNNTLETT, MILTON H. HACK.

